CODE: make sure that second and third operand of ternary operator are of same type (DrSuperGood)

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7305 8aca7d54-2c30-db11-9de9-000461428c89
sqapi: ADD get_in_transit

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7306 8aca7d54-2c30-db11-9de9-000461428c89
FIX: correctly react on errors in _tostring meta methods

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7307 8aca7d54-2c30-db11-9de9-000461428c89
sqapi: ADD export of building lists

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7308 8aca7d54-2c30-db11-9de9-000461428c89